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公开(公告)号：US20170066065A1
公开(公告)日：2017-03-09
申请号：US15120283
申请日：2015-02-19
发明人： PETER BURTSCHER
CPC分类号： B23C5/207 , A61K31/4741 , A61K36/66 , B23C5/06 , B23C2200/0461 , B23C2200/123 , B23C2200/125 , B23C2200/128 , B23C2200/203 , B23C2200/243 , B23C2220/44
摘要： An indexable cutting insert for face milling with high feed rates has: an upper side, a lower side with a smaller outer circumference than the upper side, and side surfaces connecting the upper and lower sides. Rounded cutting corners are formed at the transition between the side surfaces and the upper side. The cutting corners are connected via convexly arched cutting edges, each running convexly curved from one cutting corner to an adjacent cutting corner. Adjacent the cutting edges, the side surfaces have main flanks extending along the respective cutting edge in a continuously convexly curved manner from one cutting corner to an adjacent cutting corner. The main flanks extend in the direction of the lower side only over part of the height of the side surfaces and merge in a stepped manner into secondary surfaces which are set back inward.
摘要翻译： 用于具有高进给速度的面铣的可转位切削刀片具有：上侧，具有比上侧更小的外周的下侧和连接上侧和下侧的侧表面。 在侧面和上侧之间的过渡处形成圆角切割角。 切割角通过凸出的拱形切割刃连接，每个切割角从一个切割角向相邻的切割角凸出地弯曲。 侧面相邻，侧面具有从相应的切割边缘以一个切割角到相邻的切割角以连续凸出的方式延伸的主侧面。 主侧面仅在下侧的方向上延伸到侧表面的高度的一部分上，并且以阶梯状方式合并成向内放置的次表面。
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公开(公告)号：US20170239736A1
公开(公告)日：2017-08-24
申请号：US15519566
申请日：2015-11-23
发明人： PETER BURTSCHER , JOSEF PRAST
CPC分类号： B23C5/109 , B23B27/1662 , B23B2205/045 , B23C5/2208 , B23C2210/165
摘要： A tool for machining has a main body, a seat formed on the main body, a fastening screw, and a cutting insert. The seat has a base surface for supporting an underside of the cutting insert and a lateral bearing surface. A bore for receiving the fastening screw is formed in the base surface, the bore has a threaded bore portion and, closer toward the base surface, a thread-free bore portion. The cutting insert is fastened to the seat such that the head portion of the fastening screw is supported on the through-hole in the cutting insert. The threaded portion of the fastening screw engages with the threaded bore and the fastening screw is elastically deflected such that a thread-free shank portion bears against the thread-free bore portion on a side remote from the lateral bearing surface and is spaced apart from the thread-free bore portion.
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公开(公告)号：US20200246883A1
公开(公告)日：2020-08-06
申请号：US16620108
申请日：2018-05-22
发明人： MARKUS KRABICHLER , PETER BURTSCHER
摘要： A method for milling a workpiece by way of at least one substantially polygonal cutting insert, which is arranged in a tool holder. A spindle axis of the tool holder encloses an angle of more than 0° with a plane normal to a machined workpiece surface. An effective lead angle between a main cutting edge of the cutting insert and the machined workpiece surface lies between 0° and 20°.
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公开(公告)号：US20190030627A1
公开(公告)日：2019-01-31
申请号：US16080747
申请日：2017-02-22
发明人： PETER BURTSCHER , JOSEF PRAST
摘要： A cutting insert has a substantially triangular or square basic shape with a top surface and a base surface that are connected together by lateral flanks. A cutting edge is formed at the transition between at least one flank and the top surface. The cutting edge extends between cutting corners, and the cutting edge has a portion that is convex in side view of a flank. The convex portion of the cutting edge is bounded on both sides by concavely curved portions.
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公开(公告)号：US20170282262A1
公开(公告)日：2017-10-05
申请号：US15508597
申请日：2015-08-11
发明人： PETER BURTSCHER
CPC分类号： B23C5/207 , B23C5/06 , B23C5/109 , B23C5/2221 , B23C2200/0455 , B23C2200/0461 , B23C2200/125 , B23C2200/208 , B23C2200/286 , B23C2220/16
摘要： A reversible cutting insert for milling has first and second cutting edges formed at the transitions from the top and bottom surfaces to a lateral face. The cutting insert has a 4-fold rotational symmetry. A reference plane extends perpendicular to the axis of symmetry. The cutting edges have four cutting edge portions. One cutting edge portion is a main edge and a wiper edge that are connected by a rounded cutting corner. The first and second cutting edges are at the greatest distance from the reference plane in the region of the cutting corners. Main and wiper clearance faces directly adjoin an assigned main edge and wiper edge, respectively, in the circumferential lateral face. Exterior angles between the main clearance faces and the reference plane are greater than exterior angles between the wiper clearance faces and the reference plane.
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